Abstract

A model for the calculation of photoionization cross sections of an atom introduced inside the fullerene cage has been proposed. A comparative investigation of the photoionization cross sections of an isolated M atom and the same one in the M@C 60 endohedral has been carried out. It has been shown that the resonance peaks in the photoionization cross sections of the endohedral appear near the thresholds of ionization of atomic subshells. The positions of these peaks on the scale of the photoelectron energy are defined by the fullerene shell radius and the affinity energy of the electron to C 60.

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